linux-kernel - Re: [PATCH 2/8] tracing: create automated trace defines

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Message-ID: <49EE05AC.1070704@goop.org>
Date:	Tue, 21 Apr 2009 10:43:08 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Steven Rostedt <rostedt@...dmis.org>
CC:	Mathieu Desnoyers <compudj@...stal.dyndns.org>,
	Andi Kleen <andi@...stfloor.org>, linux-kernel@...r.kernel.org,
	Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Theodore Tso <tytso@....edu>,
	Arjan van de Ven <arjan@...radead.org>,
	Christoph Hellwig <hch@....de>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Zhaolei <zhaolei@...fujitsu.com>, Li Zefan <lizf@...fujitsu.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Masami Hiramatsu <mhiramat@...hat.com>,
	"Frank Ch. Eigler" <fche@...stic.org>,
	Tom Zanussi <tzanussi@...il.com>,
	Jiaying Zhang <jiayingz@...gle.com>,
	Michael Rubin <mrubin@...gle.com>,
	Martin Bligh <mbligh@...gle.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Neil Horman <nhorman@...driver.com>,
	Eduard - Gabriel Munteanu <eduard.munteanu@...ux360.ro>,
	Pekka@...stfloor.org
Subject: Re: [PATCH 2/8] tracing: create automated trace defines

Steven Rostedt wrote:
>
>> I tried disabling frame pointers, but it looked to me like tracing selects
>> them.  Did I misread, or perhaps it was some other config option doing it...
>>     
>
> It is needed for the function tracer (gcc -pg wont work without it). It is 
> the only tracer that selects it.
>   

Ah, right.  I'm never sure what all the trace options actually control, 
so I tend to enable them a bit indescriminately.

    J

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